For those who pick up this rx/tx combo I found the below info extremely useful when I purchased. These words are not mine FYI but I did pull from an amazon reviewer. Thought I would share for those looking for info. This relates to the dumbo x6 with gyro.
How to bind the DumboRC transmitter to the Receiver:
1: connect the receiver to power:
1a: +5 volts (red wire) goes to any middle pin
1b: -5volts (black wire) to any pin close to the receiver's edge (farthest from the antenna)
2: Turn on the transmitter.
3: To bind the receiver, find the tiny black button in the hole next to the antenna. Use a paperclip to hold the button down for 1 or 2 seconds. 3a: The green LED should blink for a few seconds while it binds to the transmitter. Then the LED should be steady.
How to turn on and off the DumboRC receiver gyro:
1) connect the receiver to power. The green LED should be lit.
2) with a paperclip, push the little button next to the antenna three times in quick succession.
3) The red LED should blink and then remain on -- meaning that the gyro is activated (both red and green LEDs will be lit)
4) Again, push the button three times, and the red LED will turn off - disabling the gyro.
5) It's important that the receiver be mounted horizontally on your car -- I had mounted the receiver vertically, and did not detect any gyro action when steering.
Here's how to get into settings mode (for the "upgraded" version):
1: turn off the transmitter.
2: pull the throttle/trigger all the way backwards (against the handle-stop).
3: twist the steering wheel full counterclockwise.
4: with the trigger backwards and steering ccw, turn on the power.
5: let go of the steering wheel and throttle/trigger.
6: push the Channel 3 button (below the trigger)
7: the top light should start blinking.
8: now, with the light blinking, reset the neutral position of trigger and steering:
8a: twist the steering full cw, then full ccw, then let go
8b: pull the trigger full backwards, full forwards, then let go.
8c: turn off the power switch.
You must do steps 8a, 8b, and 8c, or else your RC model may not drive backwards, or may not go forwards!
How to set the direction, zero point, and sensitivity for the throttle and the steering:
Open the top cover to find two slide switches, and four knobs. The left switch and 2 left knobs are for steering. The right hand switch and 2 right knobs are for throttle.
Set the top left switch for either normal or reverse steering. (really, changes the direction of the steering wheel). Set the middle-left knob for the zero-point of steering (just point its arrow straight up at first). Set the lower-left knob for the steering limits (start with it pointing straight up, adjust as you please)
Set the top right switch for either normal or reverse throttle (just changes what happens when you push or pull the finger-trigger). Set the middle-right knob so that your model does not move when the trigger is in the neutral position. Set the bottom-right knob to control the speed limit of the trigger.
You can change between ordinary throttle-steering to mixed steering-throttle ("dual-motors" or "tank" or "v-tail").
Normal steering mode means the finger-trigger will control one servo for the speed. The steering wheel will control a second servo which turns the steering mechanism.
Mixed steering mode is for a model with two motors - a one motor driving the left side of the model and motor on the right side (think of a military tank). With mixed mode, the finger-trigger controls the speed of the model, and the steering wheel controls the speed difference between the left and right motors.
To change from normal to mixed steering mode, do this:
1: turn off the transmitter.
2: pull the throttle/trigger all the way forward (towards the front of the transmitter).
3: twist the steering wheel full clockwise.
4: with the trigger frontwards and steering CW, turn on the power.
4a: the LED on top should blink red-blue.
5: let go of the steering wheel and throttle/trigger.
6: pull the trigger all the way backwards (against the handle-stop)
6a: the top LED should change to solid color:
6b: if the LED is blue, then you have normal steering
6c: if the LED is red, then you have mix steering ("tank" or "v-tail")
7: set the top switches:
top left switch is steering normal/reverse
top right switch is throttle/trigger normal/reverse
8: set the steering & throttle
How to bind the DumboRC transmitter to the Receiver:
1: connect the receiver to power:
1a: +5 volts (red wire) goes to any middle pin
1b: -5volts (black wire) to any pin close to the receiver's edge (farthest from the antenna)
2: Turn on the transmitter.
3: To bind the receiver, find the tiny black button in the hole next to the antenna. Use a paperclip to hold the button down for 1 or 2 seconds. 3a: The green LED should blink for a few seconds while it binds to the transmitter. Then the LED should be steady.
How to turn on and off the DumboRC receiver gyro:
1) connect the receiver to power. The green LED should be lit.
2) with a paperclip, push the little button next to the antenna three times in quick succession.
3) The red LED should blink and then remain on -- meaning that the gyro is activated (both red and green LEDs will be lit)
4) Again, push the button three times, and the red LED will turn off - disabling the gyro.
5) It's important that the receiver be mounted horizontally on your car -- I had mounted the receiver vertically, and did not detect any gyro action when steering.
Here's how to get into settings mode (for the "upgraded" version):
1: turn off the transmitter.
2: pull the throttle/trigger all the way backwards (against the handle-stop).
3: twist the steering wheel full counterclockwise.
4: with the trigger backwards and steering ccw, turn on the power.
5: let go of the steering wheel and throttle/trigger.
6: push the Channel 3 button (below the trigger)
7: the top light should start blinking.
8: now, with the light blinking, reset the neutral position of trigger and steering:
8a: twist the steering full cw, then full ccw, then let go
8b: pull the trigger full backwards, full forwards, then let go.
8c: turn off the power switch.
You must do steps 8a, 8b, and 8c, or else your RC model may not drive backwards, or may not go forwards!
How to set the direction, zero point, and sensitivity for the throttle and the steering:
Open the top cover to find two slide switches, and four knobs. The left switch and 2 left knobs are for steering. The right hand switch and 2 right knobs are for throttle.
Set the top left switch for either normal or reverse steering. (really, changes the direction of the steering wheel). Set the middle-left knob for the zero-point of steering (just point its arrow straight up at first). Set the lower-left knob for the steering limits (start with it pointing straight up, adjust as you please)
Set the top right switch for either normal or reverse throttle (just changes what happens when you push or pull the finger-trigger). Set the middle-right knob so that your model does not move when the trigger is in the neutral position. Set the bottom-right knob to control the speed limit of the trigger.
You can change between ordinary throttle-steering to mixed steering-throttle ("dual-motors" or "tank" or "v-tail").
Normal steering mode means the finger-trigger will control one servo for the speed. The steering wheel will control a second servo which turns the steering mechanism.
Mixed steering mode is for a model with two motors - a one motor driving the left side of the model and motor on the right side (think of a military tank). With mixed mode, the finger-trigger controls the speed of the model, and the steering wheel controls the speed difference between the left and right motors.
To change from normal to mixed steering mode, do this:
1: turn off the transmitter.
2: pull the throttle/trigger all the way forward (towards the front of the transmitter).
3: twist the steering wheel full clockwise.
4: with the trigger frontwards and steering CW, turn on the power.
4a: the LED on top should blink red-blue.
5: let go of the steering wheel and throttle/trigger.
6: pull the trigger all the way backwards (against the handle-stop)
6a: the top LED should change to solid color:
6b: if the LED is blue, then you have normal steering
6c: if the LED is red, then you have mix steering ("tank" or "v-tail")
7: set the top switches:
top left switch is steering normal/reverse
top right switch is throttle/trigger normal/reverse
8: set the steering & throttle
